长城汽车申请一种模式的切换方法等专利，实现扭矩平缓降低

Group 1 - The core point of the article is that Great Wall Motors Co., Ltd. has applied for a patent related to a method for switching driving modes in hybrid vehicles, which aims to improve the control of engine torque during the transition between series and direct drive modes [1] Group 2 - Great Wall Motors was established in 2001 and is located in Baoding City, primarily engaged in the automotive manufacturing industry [2] - The company has a registered capital of approximately 855.89 million RMB [2] - Great Wall Motors has invested in 75 enterprises and participated in 2,731 bidding projects, with 5,000 trademark and patent information entries, as well as 640 administrative licenses [2]